Welcome to R-Ladies St. Louis

Intro to Linear Optimization with R

1/24/23

Materials for tonight

instll_pkgs <- c("ompr", "ompr.roi", "ROI.plugin.glpk")

install.packages(instll_pkgs)
  • Calling the object result from the command line should yield Status: success and Objective Value: 11.25

What is R-Ladies?

  • R-Ladies is a world-wide organization with the mission of promoting gender diversity in the R community

  • Started in San Francisco in 2012 and now has 206 chapters and more than 93,000 members globally (check out rladies.org for a Shiny dashboard)

R-Ladies St. Louis

Started in September 2017 by Jenine Harris and Chelsea West

Co-organizers for 2022-23 include:

  • Jenine Harris (Washington University)
  • Mary Painter (University of Colorado, Boulder)
  • Shelly Cooper (Washington University)
  • Crystal Lewis (Freelance Data Management Consultant)
  • Laura Rose (Hinge Health)

2023 Winter/Spring Schedule

We have several speakers planned for this semester.

  • Tonight: Intro to Linear Optimization with R with Ralph Asher (Data Driven Supply Chain)
  • Wednesday Feb.22: Regular Expressions and Working with Text Strings with Luis D. Verde Arregoitia (Instituto de Ecologia, Mexico)
  • Thursday April 13: Intro to data.table with Susanna Supalla (Hinge Health)
  • TBD: Tips for R Markdown

Announcements

  • We will be recording this talk

    • Feel free to turn off your cameras if you do not want to be recorded
  • Use the chat to ask questions (to everyone or directly to the host)


https://rladies.org/code-of-conduct/

Want to learn more or get involved?

Visit rladies.org to learn about the mission and global work of R-Ladies

About tonight’s speaker

  • Ralph is the founder of Data Driven Supply Chain, LLC, a Minnesota-based consultancy that applies data science and AI methods, including linear optimization, to evaluate, design, and optimize clients’ supply chains.
  • Prior to founding Data Driven Supply Chain, he worked as an Operations Research Scientist at Target, designing e-commerce supply chain networks, and at General Mills, designing warehousing networks.
  • He can be reached at ralph@datadrivensupplychain.com